R-IN32M4-CL3 User's Manual: Board design edition
5. GPIO Port Pins
R18UZ0074EJ0100
Page 12 of 61
Dec 24, 2019
5.
GPIO Port Pins
GPIO is a general-purpose I/O port. As for the internal configuration, see the section in the following document.
Section 27 “Port Functions” in the “R-IN32M4-CL3 User’s Manual: Hardware edition”